ccomps(1) on Linux
The text a73a7dfd9ba2, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
connected components filter for graphs
Flags it lists
-
-C -
-X# -
-e -
-n -
-s -
-v -
-x -
-z